|First Appearance||Chapter 103|
|Major Relationships||Harimoto Takashi, Yokoya Norihiko, Akiyama Shinichi|
Appearance and Personality Edit
He wears a white tuxedo, and has a facial hair. He is quite greedy, but is able to make necessary relationships.
Round 4 Edit
It is revealed before the game's rules were explained that Sakai was one of the six winners from Group 1's Round 4 Qualifier. In the practice run, Sakai is one of the players that were tricked by a fake alarm caused by Liar Game officials. However he managed to win the first practice period, as well as the second practice period. In the third practice period, he had the fastest start and was able to sit in any chair he pleased, making him say that "The other players;d kill to be in my shoes right now!". As he was about to sit in his chair, Nao Kanzaki picked up the chair and threw it to Akiyama Shinichi, making him lose the practice run.
In the real game, he was originally a member of Harimoto Takashi's alliance, until Yokoya Norihiko gave him a seemingly better offer. He was asked to go back to Harimoto's alliance, but refused. He was eliminated in the 22nd period with Akiyama.
Revival Round IIIEdit
He was about to participate in this round. However, Akiyama gave a survey out to see who he would replace. He apparently won, and was replaced.